Translations:Siesta/18/en
From Polyphasic Sleep Wiki

Over the years there a few successful attempts with this variant. The main idea behind this setup is to allow a longer wake gap in the day to suit 9-to-5 jobs. A sleeper would have a core at night, go to work, and then a long sleep block to rejuvenate after work. The advantages of this schedule includes time awake in the evening and night hours. For this reason, this variant can accommodate for many lifestyles.